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Synonyms for pernicious
adj bad, hurtful- damaging
- dangerous
- deadly
- destructive
- detrimental
- devastating
- harmful
- lethal
- malicious
- nefarious
- noxious
- poisonous
- ruinous
- toxic
- virulent
- baleful
- deleterious
- evil
- fatal
- iniquitous
- injurious
- killing
- maleficent
- malevolent
- malign
- malignant
- miasmatic
- miasmic
- mortal
- noisome
- offensive
- pestiferous
- pestilent
- pestilential
- prejudicial
- sinister
- venomous
- wicked
Antonyms for pernicious
- advantageous
- assisting
- beneficial
- benevolent
- good
- harmless
- healthy
- helpful
- kind
- nonpoisonous
- wholesome
- innocuous
- lovable
- loving
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the
Philip Lief Group.
More words related to pernicious
baleful
adjective. menacing
baneful
adjective. ruinous, injurious
corrupting
adjective. evil
cruel
adjective. vicious, pitiless; causing pain
- atrocious
- barbarous
- bestial
- bitter
- bloodthirsty
- brutal
- brutish
- callous
- cold-blooded
- degenerate
- demoniac
- depraved
- evil
- excruciating
- ferocious
- fierce
- flinty
- hard
- hard-hearted
- harsh
- hateful
- heartless
- hellish
- implacable
- inexorable
- inhuman
- inhumane
- malevolent
- merciless
- monstrous
- painful
- pernicious
- poignant
- rancorous
- relentless
- revengeful
- ruthless
- sadistic
- sinful
- spiteful
- tyrannical
- unfeeling
- unkind
- unnatural
- unrelenting
- vengeful
- vicious
- virulent
- wicked
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the
Philip Lief Group.